It is important to understand that naming is serious business. You should avoid using joke names or any other kind of name that you wouldn't want the outside world to see, even temporarily. If your product is successful, those "temporary" names might be around for years and might be extremely difficult to change later on. For example, there are many "undocumented" Windows APIs that have unfortunate names, such as Death, Resurrection, TabTheTextOutForWimps, PrestoChangoSelector, BozoLivesHere, and various Bear and Bunny APIs. I'm sure these names have stuck around far longer than their originators expected. Avoid the temptation to use joke names, and use your creativity elsewhere.
TIP
Avoid choosing joke names.